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Given that unstructured data is increasing exponentially everyday, extracting and understanding the information, themes, and relationships from large collections of documents is increasingly important to researchers in many disciplines including biomedicine. Latent Dirichlet Allocation (LDA) is an unsupervised topic modeling technique based on the "bag-of-words" assumption that has been...
Information dissemination by means of computer networks uses information systems to store, retrieve and transmit knowledge, which are considered very important tools for society nowadays. The concepts of Information Science, their application to the solution of real situations regarding life cycle inventory and the procedures used in Information Technology provide a new direction to Information Science...
The environmental impact of doing business becomes an increasingly relevant aspect for organizations, not only because of legal requirements but also because more customers care about. Most organizations, however, do not have comprehensive knowledge on how to restructure their business processes accordingly. In previous work we proposed green business process patterns that address the environmental...
Quality management procedures at higher education institutions tend to use industrial quality models to demonstrate effective performance. Such models evaluate resources and results, but fail to address the quality of the educational processes. In this paper we provide an overview of the most common quality management frameworks used in higher education institutions and discuss their application,...
Model-driven engineering has prominently gained consideration as effective substitute of error-prone code-centric development approaches especially for its capability of abstracting the problem through models and then manipulating them to automatically generate target code. Nowadays, thanks to powerful modelling languages, a system can be designed by means of well-specified models that capture both...
This paper deals with the added value provided by Semantic Technologies in cloud environments. In these contexts, semantics are not understood as a massive technology but as a resource in order to improve cloud platforms' capabilities in terms of interoperability, knowledge building/representation and management. The proposed approach aims at the extension of the common middleware functional layer...
The increasing smarteness of personal devices and territories are rapidly changing the scenarios of data production. Data access and/or data possession can determine positions of privilege, but the real competitive advantage will derive more and more from the ability to identify relevant dimensions and flows and, of course, from that to extract meaningful multidimensional descriptions aimed at detecting...
This paper considers the cultural resources for corporate action tied into stakeholder models, criticizes current stakeholder models, and develops a perspective based in ethics and the political model of the stakeholder. The purpose of this analysis is to lay out models which recognize the cultural challenges related to the blurring of the boundaries of the corporation and the needs of different cultural...
Traceability between development artefacts and mainly from and to requirements plays a major role in system lifecycle, supporting activities such as system validation, change impact analysis, and regulation compliance. Many researchers have been working on this topic and have published their work throughout the editions of the Requirements Engineering Conference. This paper aims to analyse the research...
i∗ is a goal-oriented and agent-oriented modeling framework that focuses on the analysis of intentional and strategic relationships among actors. In this mini-tutorial, we highlight a number of recent applications in practical industrial and business settings.
Requirements elicitation research is reviewed using a framework categorising the relative ‘knowness’ of requirements specification and Common Ground discourse theory. The main contribution of this survey is to review requirements elicitation from the perspective of this framework and propose a road map of research to tackle outstanding elicitation problems involving tacit knowledge. Elicitation techniques...
In this work, we address problem determination in virtualized clouds. We show that high dynamism, resource sharing, frequent reconfiguration, high propensity to faults and automated management introduce significant new challenges towards fault diagnosis in clouds. Towards this, we propose CloudPD, a fault management framework for clouds. CloudPD leverages (i) a canonical representation of the operating...
This paper investigated the antecedents and influence factors of Macao residents' acceptance intention of Sport Easy Program. Using data obtained from 459 interviewers, regression analysis revealed that acquaintance, convenience, facilities, and athletics habit have positive impacts on the acceptance intention, while gender, age, and education have different moderating effects on these relationships...
In many sectors offering durable goods the extension of the service business is often seen as a possible key element in the current competitive context. Integration of services with an eye on sustainability issues is another aim that is considered for the servitization process, according to the so-called Product Service Systems. Product Service Systems are then taken as a reference for this paper,...
Many studies exist about open innovation as transfer of innovations inside and outside of the firm or as joint projects in collaborative partnerships. In this paper, we investigate the matchmaking between innovation seekers and innovation providers, with the focus on asymmetric partnerships between incumbent large companies and young entrepreneurial firms. In particular, we introduce the matchmaking...
Recently, various invasions of malwares and their incurred damages threaten the usability and privacy of computer systems. Due to the dramatic growth of these attacks, malware detection has been brought up as an important topic in computer security. Since traditional signature based techniques embedded in commercial anti-viruses have failed to detect new and obfuscated malwares, machine learning algorithms...
UML profiles are a frequently used alternative to describe the abstract syntax of modeling languages. As any abstract syntax, UML profiles evolve through time. As UML profiles are used for models definition, their evolutions may have a direct impact on them. The adaptation costs of these models may be as important as redefining a complete new model from scratch. In this paper, we deal with reducing...
Requirements Engineering involves different stakeholders and their different views of a system. Among these stakeholders, software designers are responsible for modeling the information gathered by domain experts. The communication between these specialists is not always easy, often leading to a semantic gap between what is desired and what is developed. This gap is characterized by inconsistencies...
The need for high-quality models is increasingly recognized for driving and documenting complex medical processes such as cancer therapies. A medical environment for such processes has to deal with a great multiplicity of dimensions such as different pathologies, different hospital departments, different agents with different concerns and expertise, different resources with a wide spectrum of capabilities,...
Needs for mass customization and economies of scale have pushed engineers to develop Software Product Lines (SPLs). SPLs are families of products sharing commonalities and exhibiting differences, built by reusing software assets abstractly represented by features. Feature models describe the constraints that link the features and allow the configuration of tailored software products. Common SPLs involve...
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